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Finding the Fourth Proportional to 153,232.92, 211,469.40 and 85,250.16

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Solution

The fourth proportional to 153,232.92, 211,469.40 and 85,250.16 is: 117,649.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,232.92 : 211,469.40 = 85,250.16 : x
  2. Step 2: Convert to fraction form
    153,232.92/211,469.40 = 85,250.16/x
  3. Step 3: Cross multiply
    153,232.92x = 211,469.40 × 85,250.16
  4. Step 4: Simplify right side
    153,232.92x = 18,027,800,185.10
  5. Step 5: Solve for x
    x = 18,027,800,185.10/153,232.92
  6. Step 6: Final answer
    x = 117,649.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.